This is all well and good and I have been considering one, especially with the federal and state tax credits knocking about $4K off the price, plus as a previous DR owner, I get a special $450 coupon.
I initially was confused by Sunward's pricing information, but thanks to their help I have seen that it is pretty straight forward and I hope to be able to place an order in 2010.
Heating water in your home and refrigerating food are about 80% of an average homes energy usage. If I can knock a dent in one of those, that's not a bad thing. Running a fridge on alternate power.....now that's for another blog post on anther day.
UPDATE, August 2011: Well, with my change of vocation at the end of 2009 and the ongoing economic troubles making me save every dime I could for a rainy day, I still haven't bought this system.....but I still want to. Anyone out there own one that wants to give a review? DR and Sunward, any chance you'd long term loan me one to try? ;)